Signs of a faulty boiler

Issues such as carbon monoxide poisoning can be fatal but many people are not aware of the warning signs, particularly older people, who may put flu-like symptoms or simply feeling drowsy down to old age.

Symptoms of carbon monoxide poisoning include:

Nausea

Light-headedness

Headaches

Shortness of breath

Dizziness

Sleepiness

If your carbon monoxide alarm sounds or you suspect a leak:

Stop using all appliances, switch them off, and open doors and windows to ventilate the property